oxides

Je vous emmène à travers mes vidéos découvrir mon expérience acquise depuis plus de 30 ans a silloner le globe entier à la recherche de pierres précieuses, de rencontre mémorables mais aussi de difficulté parfois …

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natural crystallized zincite from Franklin, United States

zincite

its name is linked to its zinc content. It is a stone that has long been considered rare in crystals with only one deposit in Franklin, New Jersey, in United States. Few crystals have parts that can be considered gems and cut. The zincite can

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wolframite emerald cut

wolframite

Its name comes from the german, “ wolfram” being the name of tungsten, which is its main component. The hubnerite variety is rich in manganese, of a rather red color, transparent and in slices, it was named after the german Adolph Huebner. The ferberite variety

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manganotantalite rectangular cut

tantalite

In the family of colombo – tantalites the tantalites can be high in iron or manganese. The iron-rich variety is sometimes called niobite. The rich in manganese, manganotantalite.

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violet taaffeite of Sri Lanka round cut

taaffeite

It is named after an Irish gemologist, Count Charles Taaffe, who discovered it in 1945 in a lot of cut spinel from Sri Lanka. All the characteristics of one of the stones were identical to the ones of spinels, except for the presence of a

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cushion cut spinel from Tanzania

spinel

This is a gem belonging to a group of minerals close to each other and it was many times qualified as liar because it is present in the same deposits of the ruby and sapphire and it has often been confused with these gems. Some

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simpsonite from Brazil oval cut

simpsonite

It was discovered in Australia and its name honors the Australian mineralogist Edward Sydney Simpson (1875-1939).

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